STRUCT UBIFS_CNODE(9)

🌸 struct ubifs_cnode(9) 🌸

okay so bestie, welcome to the Kernel API Manual — this page is literally all about struct ubifs_cnode, aka the LEB Properties Tree common node. yes it's a struct. yes it's important. no you cannot skip it 💅

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✨ NAME ✨

struct ubifs_cnode — the LEB Properties Tree common node. that's it, that's the name, she's iconic and she knows it 🎀

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🦋 SYNOPSIS 🦋

here's the whole shape of her, no cap:

struct ubifs_cnode {
    struct ubifs_nnode *parent;
    struct ubifs_cnode *cnext;
    unsigned long flags;
    int iip;
    int level;
    int num;
 };

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💖 Members 💖

okay so let's go through her fields one by one, main character by main character ✨

• parent — the parent nnode. her mom, basically 🫶
• cnext — the next cnode to commit. the queue is queuing 😭
• flags — her flags, and they're only ever DIRTY_LPT_NODE or OBSOLETE_LPT_NODE. pick a lane, girl 💅
• iip — index in parent. where she sits at the family table 🍓
• level — her level in the tree. and listen: it's zero for pnodes, and greater than zero for nnodes. important detail, don't forget it 👑
• num — the node number. just her little id number, ngl 🔥

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🌈 SEE ALSO 🌈

bestie there are SO many friends on this list, iykyk. also she lives in the kernel file ./fs/ubifs/ubifs.h, in case you were wondering where she hangs out 🦋

• struct ubifs_old_idx(9)
• struct ubifs_scan_node(9)
• struct ubifs_scan_leb(9)
• struct ubifs_gced_idx_leb(9)
• struct ubifs_inode(9)
• struct ubifs_unclean_leb(9)
• struct ubifs_lprops(9)
• struct ubifs_lpt_lprops(9)
• struct ubifs_lp_stats(9)
• struct ubifs_pnode(9)
• struct ubifs_nbranch(9)
• struct ubifs_nnode(9)
• struct ubifs_lpt_heap(9)
• struct ubifs_wbuf(9)
• struct ubifs_bud(9)
• struct ubifs_jhead(9)
• struct ubifs_zbranch(9)
• struct ubifs_znode(9)
• struct bu_info(9)
• struct ubifs_node_range(9)
• struct ubifs_compressor(9)
• struct ubifs_budget_req(9)
• struct ubifs_orphan(9)
• struct ubifs_mount_opts(9)
• struct ubifs_budg_info(9)
• struct ubifs_stats_info(9)
• struct ubifs_info(9)
• ubifs_check_hash(9)
• ubifs_check_hmac(9)
• ubifs_branch_hash(9)
• ubifs_copy_hash(9)
• ubifs_auth_node_sz(9)

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lowkey a whole friend group fr fr 💀 read them all, they're all slaying in their own way 💜

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aaaand that's the page, bestie!! 🧚✨ this little masterpiece came from the kernel file ./fs/ubifs, dated October 2026 — so go forth and stan struct ubifs_cnode(9) responsibly. mwah 💋🎀🫶